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CONTRIBUTING.md

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+# How to Contribute to `resrm`
+
+Thanks for your interest in contributing to `resrm`! This guide walks you through the process step by step so you can send contributions with confidence.
+
+### For external contributors
+
+1. **Fork the repository** via GitHub: click *Fork* at the top right.
+2. **Clone your fork**:
+
+   ```bash
+   git clone https://github.com/<your-username>/resrm.git
+   cd resrm
+   ```
+3. **Add the upstream repo** so you can sync later:
+
+   ```bash
+   git remote add upstream https://github.com/mdaleo404/resrm.git
+   ```
+4. **Create a feature branch**:
+
+   ```bash
+   git checkout -b feature/my-new-thing
+   ```
+5. Make your changes and test them locally.
+6. **Push to your fork**:
+
+   ```bash
+   git push -u origin feature/my-new-thing
+   ```
+7. Open a **Pull Request** targeting the `main` branch of the upstream repo.
+
+### For maintainers
+
+You may create branches directly in the main repository without forking.
+
+## Commit Message Style Commit Message Style
+
+To keep the automated changelog clean, follow this commit style:
+
+**Format:**
+
+```
+type: short description
+```
+
+**Accepted types:**
+
+* `feat:` new features
+* `fix:` bug fixes
+* `refactor:` internal improvements
+* `perf:` performance changes
+* `docs:` documentation updates
+* `chore:` maintenance
+* `test:` test-only changes
+
+**Examples:**
+
+```
+feat: add --dry-run flag
+fix: handle unicode paths
+refactor: simplify cleanup logic
+```
+
+Don’t overthink it — the maintainer can adjust commit types during merge if needed.
+
+## What Happens After You Submit a PR?
+
+After reviewing your changes, your PR (hopefully) gets merged. Then:
+
+* **Release Please** automatically creates a **release PR** summarizing changes
+* The maintainer merges that release PR
+* A GitHub Release is created
+* The package is published to PyPI
+* Wheels, source tarballs, and checksums are attached to the GitHub Release
+
+No need to bump versions manually (unless needed).
+
+## Code Style
+
+* Follow standard Python formatting
+* Add type hints when possible
+* Keep functions small and readable
+* Stick to clear naming
+
+## Need Help, Found a Bug, Have a Request?
+
+If you're unsure about anything:
+
+* **Open an issue**
+* Start a discussion
+* Ask questions before writing lots of code
+
+## Thank You
+
+Your contributions — large or small — help make `resrm` better for everyone. Thanks for being part of the project!